#36A7C4

CSS

:root {
  --pacific-blue: #36a7c4;
  --pacific-blue-rgb: 54 167 196;
  --pacific-blue-oklch: oklch(0.678 0.107 218.8);
}

.element {
  color: var(--pacific-blue);
  background-color: hsl(192 57% 49%);
  border-color: oklch(0.678 0.107 218.8);
}

Tailwind CSS v4

@theme {
  --color-pacific-blue: #36a7c4;
  --color-pacific-blue-50: #d5fdff;
  --color-pacific-blue-100: #c1f1ff;
  --color-pacific-blue-200: #a1dff4;
  --color-pacific-blue-300: #76c4de;
  --color-pacific-blue-400: #47adc9;
  --color-pacific-blue-500: #0096b6;
  --color-pacific-blue-600: #007f99;
  --color-pacific-blue-700: #00667b;
  --color-pacific-blue-800: #004b5a;
  --color-pacific-blue-900: #00343f;
  --color-pacific-blue-950: #001f28;
}

SCSS

$pacific-blue: #36a7c4;
$pacific-blue-rgb: 54, 167, 196;
$pacific-blue-light: mix(#fff, $pacific-blue, 20%);
$pacific-blue-dark: mix(#000, $pacific-blue, 20%);

.element {
  color: $pacific-blue;
  box-shadow: 0 0 0 2px rgba($pacific-blue, 0.35);
}